Mixed paint



" Anti-wa stcoa MIXED PAINT.

.11 A. BCONE" MLLVIJI SPECIFICATIONforming part of Letters Patent No.342,174, dated May 18, 1886.

Application filed January 14. 1865. Serial No. 152,855. (Specimena)tough and unyielding like gutta-percha, nor 7 5 nois, have invented acertain new and Improved Coating Compound; and I hereby declare thefollowing to be a full, clear, and exact description of the same.

My invention relates to the class of com- 10 pounds usually appliedthrough the medium of a brush to surfaces, to provide upon the lattercoats for the purpose of affording to them an attractive appearance, theoperation of applying such compounds being expressed by the termpainting, though the present compound is not, as will be understood fromthe description hereinafter contained, necessarily a paint, since itneed not contain a pigment, which forms an ingredient of paint,

as this term is commonly understood.

Tuno is a name applied by the natives of Honduras, Central America, to atree, to which the botanical name Isonandrah has been given. The tree,which grows in great profusion, is thought to be indigenous to CentralAmerica, and belongs to the same family as the rubber and gutta-perchatrees, the leaves, bark, and size of the tree being similar. Analysishas shown that the sap obtained from the tuno-tree contains twenty percent. of the properties contained in caoutchouc, forty per cent. ofthose contained in gutta-percha, and forty per cent. of rosin andsimilar substances. The sap is obtained by the inhabitants fromincisions made in the trees, and soon hardens to a gum on exposure tothe atmosphere. The most striking apparent differences between thissubstance and caoutchouc and gutta-pereha appear to consist in the factsthat it does not, like guttapercha, become brittle with age and exposureto the atmosphere and moisture, but acquires increased tenacity, andthat it does not, like rubber, rot when exposed to moisture, the

latter of which facts is made evident by he discovery of householdutensils in the forms of drinking-vessels, 850, in good condition,having been unearthed from various depths in the ground,- wherein theyhad, doubtless,

been buried for ages. The substance is not elastic like rubber. It mayreadily be cut" by a hydrocarbon oil or turpentine, and perhaps by othersubstances, and is impervious to moisture or air when applied as acoating and hardened. In this last-named form of its application itaffords surface like varnish, and, owingto t e resisance which itaffords for any length oftime to the action of water, damp, and allthecauses which produce fermentation and decay-has a preservative effecton wood, prevents corrosion of iron and flaking of stone, and preservesbrick and prevents the oozing to the surfaceof the latter of alkali,which may be contained in the clay of which they are formed.

It is my object to provide a coating compound which shall contain, as aningredient, the substance tuno-gum, whereby the desirable propertiesabove mentioned of this gum may be employed in a very useful form-.

To this end my invention consists in acoating compound composed oftuno-gum and a' vehicle solvent. My invention further consists in a coating compound composed of tuno-gum dissolved in a vehicle solvent, androsin; and it further consists in a coating compound eomposed ofdissolved tuno -gum, rosin, oil, and

proper proportions to provide the desired,

depth of color.

addition to its other properties, the precise purpose of linseed-oil inpaint, and affords a better product than one in which linseed-oil isemployed, at one-fourth the cost of the lat-- ter, and produces adesirable gloss upon the surface to which it is applied.

Although benzine and naphtha are named as 9 The tuno-gum in the compoundeffects, in

media, either one of which may be employed to cut the tuno-gum, any

hydrocarbon oil [00 or turpentine will answer the purpose, and anysuitable resinous gum may be employed as abase, instead of rosin.

-What I claim as new, and desire to'secnre 5 by Letters Patent, is

1. Acoating compound composed of tnnogum and benzine or naphtha, or anequivalent solvent, substantially as'described. 2. A coating compoundcomposed of tuneum, benzine or naphtha,

'or an equ alent sol '7 vent, and rosin or its equhalent, substantiallyas described. 1

3. A coating compound composed of dis-g solved tuno-gnm, rosin, oil, andcoloring-mat-z ter, in substantially the proportions named.

ALONZO '1. BOONE.

In presence of:

A. .G. CALKINS, Mason BROSS..

